Thank you for the credentials, it was set to be
font-weight 400 in the first place
Obviously, it will be bolder than the other text (
I change the paragraph weight to 300 while keep the headings 400, see the difference
Regarding the italics, please inspect the text under TRADITIONAL TENTS, I see a wild opening
<em> in there
Please audit your other text content for other typo error like this.
Hope it helps,